US5359163A - Pushbutton switch with adjustable pretravel - Google Patents

Pushbutton switch with adjustable pretravel Download PDF

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Publication number
US5359163A
US5359163A US08/053,278 US5327893A US5359163A US 5359163 A US5359163 A US 5359163A US 5327893 A US5327893 A US 5327893A US 5359163 A US5359163 A US 5359163A
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US
United States
Prior art keywords
plunger
housing
adjustment member
operated switch
plunger assembly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US08/053,278
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English (en)
Inventor
Tony O. Woodard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eaton Corp
Original Assignee
Eaton Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eaton Corp filed Critical Eaton Corp
Priority to US08/053,278 priority Critical patent/US5359163A/en
Assigned to EATON CORPORATION reassignment EATON CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WOODARD, TONY O.
Priority to DE69400063T priority patent/DE69400063T2/de
Priority to EP94106009A priority patent/EP0622817B1/en
Priority to JP6104973A priority patent/JPH076656A/ja
Priority to KR1019940008330A priority patent/KR100284664B1/ko
Application granted granted Critical
Publication of US5359163A publication Critical patent/US5359163A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/12—Movable parts; Contacts mounted thereon
    • H01H13/20—Driving mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H2003/323—Driving mechanisms, i.e. for transmitting driving force to the contacts the mechanisms being adjustable

Definitions

  • This invention relates to pushbutton switches.
  • the invention relates to pushbutton switches wherein the pretravel, i.e. the distance a movable contact travels to engage the stationary contacts, is adjustable to compensate for tolerance accumulations in the parts.
  • Pushbutton switches generally comprise a housing, a plunger in the housing carrying a movable contact, stationary contacts in the housing aligned with the movable contact, and springs biasing the movable contact and the plunger away from the stationary contacts. Depression of the plunger moves the movable contact into engagement with the stationary contacts to complete an electrical circuit therethrough.
  • the individual parts and significant features of the parts are dimensioned to establish a specific initial dimension between the movable and the stationary contacts in the extended position of the pushbutton, thereby defining a particular distance the plunger must be depressed before effecting engagement of the movable and stationary contacts. Each part and feature dimension has a manufacturing tolerance.
  • the tolerances may "stack" adversely, thereby significantly changing the initial dimension between the movable and stationary contacts in the extended position and therefore changing the distance the plunger must travel to effect contact engagement.
  • consistency of this initial dimension between the movable and stationary contacts is essential.
  • This invention provides a pushbutton switch having means for adjusting the initial dimension between the stationary and movable contacts after assembly of the switch.
  • the adjustment means effectively lengthens or shortens an axial dimension of the plunger by rotating an adjustment cam member in the plunger assembly.
  • a window is provided in a lateral wall of the switch housing for access to the adjustment cam member.
  • the cam surface on the adjustment cam member doubles as a detent for the adjustment cam member.
  • FIG. 1 is a side elevation view, partially broken away, of the pushbutton switch with adjustment means constructed in accordance with this invention
  • FIG. 2 is a center line cross sectional view of the switch of FIG. 1 taken in a plane parallel to the paper;
  • FIG. 3 is a center line cross sectional view of the switch of FIG. 1 taken in a plane perpendicular to the paper;
  • FIG. 4a is a cross sectional view taken along the line 4--4 in FIG. 1 showing the adjustment cam member in a first position
  • FIG. 4b is a view like 4a showing the adjustment cam member in a clockwise rotated position
  • FIG. 4c is a view like 4a showing the adjustment cam member in a counterclockwise rotated position
  • FIG. 5 is a perspective view of the adjustment cam member for the pushbutton switch constructed in accordance with this invention.
  • FIG. 6 is a side elevation view of the adjustment cam member shown in FIG. 5;
  • FIG. 7 is a bottom plan view of the adjustment cam member shown in FIG. 5;
  • FIG. 8 is a cross sectional view of the plunger and movable contact members taken along the line 8--8 in FIG. 2;
  • FIG. 9 is a top plan view of a pushbutton switch assembly showing the pushbutton switch of FIGS. 1-8 assembled into a supplementary switch housing;
  • FIG. 10 is a center line cross sectional view of the switch assembly of FIG. 9 taken in a plane parallel to the paper;
  • FIG. 11 is a center line cross sectional view of the switch assembly of FIG. 9 taken in a plane perpendicular to the paper.
  • FIG. 12 is a bottom plan view of the switch assembly of FIG. 9
  • the pushbutton switch 2 of this invention comprises a molded insulating housing 4 having a generally cylindrical barrel portion 4a and an enlarged cylindrical frame portion 4b open to the lower end thereof.
  • Frame portion 4b has slots 4c located on the orthogonal axes which extend upward as shallow grooves along the exterior surface of barrel portion 4a.
  • a molded insulating base 6 has slots 6a arranged on the orthogonal axes in alignment with the slots 4c of housing 4.
  • Base 6 has one or two pairs of stationary contacts 8 retained in appropriate pockets in the base 6 adjacent the respective inner walls of diametrically opposed ones of the slots 6a according to whether the switch is to be a single pole or double pole switch.
  • Base 6 is attached to the lower end of housing 4 by any appropriate method. Although not specifically shown, it is preferred that base 6 and housing 4 are suitably configured for snap together attachment.
  • the barrel portion 4a of housing 4 has a multi-stepped cylindrical opening therethrough which is enlarged adjacent the frame portion 4b at the lower end of housing 4 and is reduced at the upper end of the barrel.
  • a plunger assembly 10 is disposed within the stepped cylindrical opening of housing 4.
  • the plunger assembly comprises a contact carrier 12 molded of insulating material.
  • Contact carrier 12 is an elongated member generally symmetrical about an axis extending longitudinally therethrough.
  • the upper portion 12a of contact carrier 12 is generally cylindrical complementally to the bore of housing 4.
  • the lower end 12b of contact carrier 12 has a rectangular shape, preferably square, to be complementally received in a square recess 6b of base 6 to prevent rotation of contact carrier 12 about the longitudinal axis.
  • the lower end 12b has a cylindrical recess 12c for receiving one end of a helical compression spring 14, the other end of which is positioned by a semispherical boss molded in the bottom of recess 6b.
  • Spring 14 biases contact carrier 12 upwardly toward the reduced diameter end of barrel 4a.
  • Contact carrier 12 is also provided with a window 12d extending diametrically therethrough above the end portion 12b.
  • a flat movable contact 16 is disposed within the window 12d having opposite ends projecting out opposite sides of the contact carrier. The opposite ends of movable contact 16 are widened in a bow-tie fashion to maintain the movable contact positioned relative to the contact carrier and to match the contact faces of the stationary contacts 8.
  • Contact 16 is biased against a bottom edge of window 12d by a helical compression spring 18 positioned within a widened central recess of the contact carrier. Movable contact 16 is used in a single pole switch arrangement. A double pole switch arrangement is shown in the drawings and is provided by a second movable contact 20 which is disposed over the exterior of the movable contact carrier 12. As can be seen in FIG. 8, contact carrier 12 and movable contact 20 are provided with flat surfaces and edges, respectively, to prevent rotation of movable contact 20 about the contact carrier 12. As can be seen in FIG. 3, the opposite ends of movable contact 20 are offset downwardly to be substantially coplanar with the opposite ends of movable contact 16.
  • movable contact 20 overlie a respective diametrically opposed pair of stationary contacts 8 which are 90 degrees displaced from the stationary contacts 8 associated with movable contact 16.
  • a helical compression spring 22 is disposed around contact career 12 to bear upon movable contact 20.
  • the opposite end of spring 20 bears against a C-ring 24 attached to the contact career 12.
  • Movable contact 20 rests upon step ledges 12e provided on the periphery of contact carrier 12 as shown in FIG. 3.
  • the contact career 12 could comprise an integral portion extending upwardly through the reduced size opening at the upper end of barrel portion 4a of housing 4 and thus be a one piece plunger assembly.
  • the contact carrier 12 is molded of a plastic-type material which is electrically insulative.
  • the end use applications of such switches commonly employ a metal machine part operating the switch by depressing the plunger.
  • the dissimilar materials and the nature of the engagement therebetween tends to cause excessive wear which affects the amount of travel of the machine element before actually causing the plunger to be depressed sufficiently to operate the contacts.
  • an operator 26 is commonly used to alleviate the wear, the operator being a machined metal part or other high wear resistant material placed between the end of contact carrier 12 and the upper end of barrel portion 4a.
  • the operator 26 is a cylindrical member having a reduced diameter pin portion 26a extending upwardly therefrom through the opening in the end wall of housing 4. While the operator 26 improves the wear resistance, it adds still another individual part to the switch and may add to any adverse tolerance accumulations in the switch which determine the original, dimension X (FIG. 1) between the movable contacts 16 or 20 and the respective stationary contacts 8.
  • Adjustment cam member 28 is a molded plastic cylindrical tube having three diametrically extending grooves 28a, 28b and 28c rotatably spaced at equal intervals on its bottom surface. Grooves 28a-28c each have a different axial dimension or height; groove 28a being the shallowest groove, 28c being the deepest and groove 28b being at an intermediate depth between grooves 28a and 28c (See FIG. 6).
  • the side surface of cam member 28 is provided with a pair of radially directed slots 28d and 28e. As seen in FIGS.
  • barrel portion 4a of housing 4 is provided with a window 4d adjacent the rotary adjustment cam member 28.
  • the upper end of contact carrier 12 is provided with a diametrically disposed rib 12f which is overlaid by one of the slots 28a-28c.
  • Rotary adjustment cam member 28 may be rotated by insertion of a tool (not shown) through window 4d to engage one of the slots 28d or 28e.
  • the intermediate height groove 28b overlies rib 12f and the gap X is a median dimension.
  • the overall length of the plunger assembly 10 is increased by engaging slot 28d with a tool and rotating adjustment member 28 counterclockwise to the position shown in FIG.
  • the overall length of plunger assembly 10 is effectively shortened by engaging slot 28e with a tool and rotating the adjustment member 28 clockwise to the position shown in FIG. 4b, wherein the deeper groove 28c is overlying the rib 12f.
  • the spring 14 biases the plunger assembly 10 upward to an extended position wherein the cylindrical body of operator 26 bears against the shoulder of the reduced diameter opening of barrel 4a.
  • the lower surface of operator 26 bears against the upper surface of rotary adjustment cam member 28.
  • the respective grooves 28a-28c bear upon the fib 12f of contact carrier 12.
  • All of these junctions determine the location of the lower edge of the window 12d in contact carrier 12 to determine the dimension X between the movable contacts 16 and 20 and the respective stationary contacts 8.
  • the depth of the grooves 28a-28c can be held closely toleranced in manufacture of the member 28 such that the grooves 28a and 28c represent a plus or minus equal tolerance on opposite sides of the mean dimension represented by groove 28b.
  • the contacts can be set to close consistently after X amount of travel of the plunger assembly 10. Overtravel of plunger assembly 10 is permitted by the spring 18 which also provides contact pressure for the switch contacts.
  • pushbutton switch 2 is mounted within a supplementary switch housing as shown in FIGS. 9-12.
  • the supplementary switch housing comprises a molded cup-like case 30 of electrical insulating material having diametrically opposed pairs of wiring terminals 32 and 34 integrally molded therewith.
  • Resilient spring clip electrical connectors 36 and 38 are attached to the respective wiring terminals 32 and 34 within the case 30 to extend upward along the side walls thereof.
  • the spring clip conductors have a reverse bend portion facing inwardly.
  • Pushbutton switch 2 is inserted within the cup-like cavity of case 30 such that spherical bosses 8a on stationary contacts 8 engage the re-entrant portion of reversely bent conductors 36 and 38 to make electrical connection therewith.
  • a helical compression spring 40 rests at one end within a recess in the bottom of case 30 and at the other end within a spring seat formed on the underside of base 6 of switch 2 to bias the switch 2 upwardly relative to the case 30.
  • An annular shoulder 30a is provided on the external surface of case 30 intermediate its ends. Annular shoulder 30a provides a substantially right angle shouldered upper surface and a curved shouldered lower surface.
  • An O-ring 42 is disposed over the outer periphery of case 30 to rest against the right angle surface of annular shoulder 30a.
  • a metal bushing 44 provides the final portion of the supplementary housing for switch unit 2.
  • Bushing 44 has a generally hexagonal main body which has a cylindrical flange 44a depending from its lower surface.
  • a threaded bushing 44b projects upwardly from the upper surface of bushing 44.
  • Bushing 44b is disposed over the barrel portion 4a of switch 2 and over the upper end of case 30 whereby a lower internal annular shoulder on bushing 44 bears against O-ring 42, compressing the same when the depending annular flange 44a is rolled over the lower rounded surface of annular ring 30a.
  • the supplementary housing provides mounting for the switch 2 and electrical connection thereto. It also provides for major overtravel without damaging the switch 2 by permitting depression of the entire pushbutton switch 2 against the bias of spring 40. Depression of switch 2 slides the movable contacts 8 along the re-entrant portions of conductive members 36 and 38 to maintain conductivity therebetween.

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  • Push-Button Switches (AREA)
US08/053,278 1993-04-28 1993-04-28 Pushbutton switch with adjustable pretravel Expired - Lifetime US5359163A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US08/053,278 US5359163A (en) 1993-04-28 1993-04-28 Pushbutton switch with adjustable pretravel
DE69400063T DE69400063T2 (de) 1993-04-28 1994-04-18 Druckknopfschalter mit einstellbaren Vorlaufweg
EP94106009A EP0622817B1 (en) 1993-04-28 1994-04-18 Pushbutton switch with adjustable pretravel
JP6104973A JPH076656A (ja) 1993-04-28 1994-04-19 プランジャー移動調整付きプッシュボタンスイッチ
KR1019940008330A KR100284664B1 (ko) 1993-04-28 1994-04-20 소정의 거리를 조절할 수 있는 푸쉬버튼

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/053,278 US5359163A (en) 1993-04-28 1993-04-28 Pushbutton switch with adjustable pretravel

Publications (1)

Publication Number Publication Date
US5359163A true US5359163A (en) 1994-10-25

Family

ID=21983101

Family Applications (1)

Application Number Title Priority Date Filing Date
US08/053,278 Expired - Lifetime US5359163A (en) 1993-04-28 1993-04-28 Pushbutton switch with adjustable pretravel

Country Status (5)

Country Link
US (1) US5359163A (ja)
EP (1) EP0622817B1 (ja)
JP (1) JPH076656A (ja)
KR (1) KR100284664B1 (ja)
DE (1) DE69400063T2 (ja)

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5964342A (en) * 1997-11-25 1999-10-12 Hans Bernstein Spezialfabrik Fur Schaltkontakte Gmbh & Co. Safety switch
US20060110983A1 (en) * 2004-11-24 2006-05-25 Muench Frank J Visible power connection
US20070284232A1 (en) * 2006-06-12 2007-12-13 Control Products Inc. Switch with low pre-travel and high overtravel
US20070295587A1 (en) * 2006-06-23 2007-12-27 Control Products Inc. Device limit switch with low pre-travel and high overtravel
US7661979B2 (en) 2007-06-01 2010-02-16 Cooper Technologies Company Jacket sleeve with grippable tabs for a cable connector
US7666012B2 (en) 2007-03-20 2010-02-23 Cooper Technologies Company Separable loadbreak connector for making or breaking an energized connection in a power distribution network
US7670162B2 (en) 2008-02-25 2010-03-02 Cooper Technologies Company Separable connector with interface undercut
US7695291B2 (en) 2007-10-31 2010-04-13 Cooper Technologies Company Fully insulated fuse test and ground device
US20100224472A1 (en) * 2009-03-09 2010-09-09 Niles Co., Ltd. Push switch
US7811113B2 (en) 2008-03-12 2010-10-12 Cooper Technologies Company Electrical connector with fault closure lockout
US7854620B2 (en) 2007-02-20 2010-12-21 Cooper Technologies Company Shield housing for a separable connector
US7878849B2 (en) 2008-04-11 2011-02-01 Cooper Technologies Company Extender for a separable insulated connector
US7901227B2 (en) 2005-11-14 2011-03-08 Cooper Technologies Company Separable electrical connector with reduced risk of flashover
US7905735B2 (en) 2008-02-25 2011-03-15 Cooper Technologies Company Push-then-pull operation of a separable connector system
US7950939B2 (en) 2007-02-22 2011-05-31 Cooper Technologies Company Medium voltage separable insulated energized break connector
US7950940B2 (en) 2008-02-25 2011-05-31 Cooper Technologies Company Separable connector with reduced surface contact
US7958631B2 (en) 2008-04-11 2011-06-14 Cooper Technologies Company Method of using an extender for a separable insulated connector
US8056226B2 (en) 2008-02-25 2011-11-15 Cooper Technologies Company Method of manufacturing a dual interface separable insulated connector with overmolded faraday cage
US8109776B2 (en) 2008-02-27 2012-02-07 Cooper Technologies Company Two-material separable insulated connector
US20120142418A1 (en) * 2010-09-03 2012-06-07 Hiroaki Muramatsu Directional pad keystroke adjustment mechanism
CN103295824A (zh) * 2013-06-18 2013-09-11 天津七一二通信广播有限公司 机车电台用微动开关
US20150206671A1 (en) * 2014-01-22 2015-07-23 Fu Tai Hua Industry (Shenzhen) Co., Ltd. Electronic device with button
US20150298001A1 (en) * 2014-04-21 2015-10-22 Steelseries Aps Programmable actuation inputs of an accessory and methods thereof
US20170341329A1 (en) * 2016-05-27 2017-11-30 Fu Tai Hua Industry (Shenzhen) Co., Ltd. Pressing assembly
US10675532B2 (en) 2014-04-21 2020-06-09 Steelseries Aps Variable actuators of an accessory and methods thereof

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ES2112741B1 (es) * 1994-11-11 1998-12-01 Fico Cables Sa Dispositivo detector de sobreaceleracion.
ATE472272T1 (de) * 2008-03-31 2010-07-15 Vauth Sagel Holding Gmbh & Co Betätigungssensor für ein gegenüber einem möbelkorpus bewegliches möbelteil
WO2013039466A1 (en) * 2011-09-08 2013-03-21 Honeywell International Inc. Plunger switch
DE102014003087A1 (de) * 2014-03-01 2015-09-03 Leopold Kostal Gmbh & Co. Kg Tastschalter und Bedienanordnung mit mindestens einem Tastschalter
TWI628683B (zh) * 2015-07-30 2018-07-01 達方電子股份有限公司 鍵盤
DE102018108847B4 (de) * 2018-04-13 2019-10-31 Behr-Hella Thermocontrol Gmbh Bedienvorrichtung für ein Fahrzeug

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US1853964A (en) * 1930-03-15 1932-04-12 Gen Electric Electric switch
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US3581025A (en) * 1968-01-15 1971-05-25 Roland J Yeo Electrical contact breaker mechanisms with improved contact gap adjustment means
US3912894A (en) * 1974-04-26 1975-10-14 Westinghouse Electric Corp Convertible switch
US5063276A (en) * 1990-08-20 1991-11-05 Eaton Corporation Pushbutton switch with rotational contact wiping action

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SU193587A1 (ja) *
US1853964A (en) * 1930-03-15 1932-04-12 Gen Electric Electric switch
US2946871A (en) * 1957-12-12 1960-07-26 Allen Bradley Co Multiposition switch
US3581025A (en) * 1968-01-15 1971-05-25 Roland J Yeo Electrical contact breaker mechanisms with improved contact gap adjustment means
US3912894A (en) * 1974-04-26 1975-10-14 Westinghouse Electric Corp Convertible switch
US5063276A (en) * 1990-08-20 1991-11-05 Eaton Corporation Pushbutton switch with rotational contact wiping action

Cited By (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5964342A (en) * 1997-11-25 1999-10-12 Hans Bernstein Spezialfabrik Fur Schaltkontakte Gmbh & Co. Safety switch
US20060110983A1 (en) * 2004-11-24 2006-05-25 Muench Frank J Visible power connection
US7182647B2 (en) * 2004-11-24 2007-02-27 Cooper Technologies Company Visible break assembly including a window to view a power connection
US7901227B2 (en) 2005-11-14 2011-03-08 Cooper Technologies Company Separable electrical connector with reduced risk of flashover
US8038457B2 (en) 2005-11-14 2011-10-18 Cooper Technologies Company Separable electrical connector with reduced risk of flashover
US20070284232A1 (en) * 2006-06-12 2007-12-13 Control Products Inc. Switch with low pre-travel and high overtravel
US7399938B2 (en) 2006-06-12 2008-07-15 Control Products Inc Switch with low pre-travel and high overtravel
US20070295587A1 (en) * 2006-06-23 2007-12-27 Control Products Inc. Device limit switch with low pre-travel and high overtravel
US7525057B2 (en) 2006-06-23 2009-04-28 Control Products Inc. Device limit switch with low pre-travel and high overtravel
US7854620B2 (en) 2007-02-20 2010-12-21 Cooper Technologies Company Shield housing for a separable connector
US7950939B2 (en) 2007-02-22 2011-05-31 Cooper Technologies Company Medium voltage separable insulated energized break connector
US7666012B2 (en) 2007-03-20 2010-02-23 Cooper Technologies Company Separable loadbreak connector for making or breaking an energized connection in a power distribution network
US7862354B2 (en) 2007-03-20 2011-01-04 Cooper Technologies Company Separable loadbreak connector and system for reducing damage due to fault closure
US7909635B2 (en) 2007-06-01 2011-03-22 Cooper Technologies Company Jacket sleeve with grippable tabs for a cable connector
US7883356B2 (en) 2007-06-01 2011-02-08 Cooper Technologies Company Jacket sleeve with grippable tabs for a cable connector
US7661979B2 (en) 2007-06-01 2010-02-16 Cooper Technologies Company Jacket sleeve with grippable tabs for a cable connector
US7695291B2 (en) 2007-10-31 2010-04-13 Cooper Technologies Company Fully insulated fuse test and ground device
US7905735B2 (en) 2008-02-25 2011-03-15 Cooper Technologies Company Push-then-pull operation of a separable connector system
US7950940B2 (en) 2008-02-25 2011-05-31 Cooper Technologies Company Separable connector with reduced surface contact
US7670162B2 (en) 2008-02-25 2010-03-02 Cooper Technologies Company Separable connector with interface undercut
US8056226B2 (en) 2008-02-25 2011-11-15 Cooper Technologies Company Method of manufacturing a dual interface separable insulated connector with overmolded faraday cage
US8109776B2 (en) 2008-02-27 2012-02-07 Cooper Technologies Company Two-material separable insulated connector
US8152547B2 (en) 2008-02-27 2012-04-10 Cooper Technologies Company Two-material separable insulated connector band
US7811113B2 (en) 2008-03-12 2010-10-12 Cooper Technologies Company Electrical connector with fault closure lockout
US7958631B2 (en) 2008-04-11 2011-06-14 Cooper Technologies Company Method of using an extender for a separable insulated connector
US7878849B2 (en) 2008-04-11 2011-02-01 Cooper Technologies Company Extender for a separable insulated connector
US8212170B2 (en) * 2009-03-09 2012-07-03 Niles Co., Ltd. Push switch
US20100224472A1 (en) * 2009-03-09 2010-09-09 Niles Co., Ltd. Push switch
US8496528B2 (en) * 2010-09-03 2013-07-30 Hiroaki Muramatsu Directional pad keystroke adjustment mechanism
US20120142418A1 (en) * 2010-09-03 2012-06-07 Hiroaki Muramatsu Directional pad keystroke adjustment mechanism
CN103295824A (zh) * 2013-06-18 2013-09-11 天津七一二通信广播有限公司 机车电台用微动开关
US20150206671A1 (en) * 2014-01-22 2015-07-23 Fu Tai Hua Industry (Shenzhen) Co., Ltd. Electronic device with button
US10328341B2 (en) 2014-04-21 2019-06-25 Steelseries Aps Programmable actuation inputs of an accessory and methods thereof
US10022622B2 (en) * 2014-04-21 2018-07-17 Steelseries Aps Programmable actuation inputs of an accessory and methods thereof
US20150298001A1 (en) * 2014-04-21 2015-10-22 Steelseries Aps Programmable actuation inputs of an accessory and methods thereof
US10675532B2 (en) 2014-04-21 2020-06-09 Steelseries Aps Variable actuators of an accessory and methods thereof
US10933313B2 (en) 2014-04-21 2021-03-02 Steelseries Aps Programmable actuation inputs of an accessory and methods thereof
US11318374B2 (en) * 2014-04-21 2022-05-03 Steelseries Aps Variable actuators of an accessory and methods thereof
US11602685B2 (en) * 2014-04-21 2023-03-14 Steelseries Aps Programmable actuation inputs of an accessory and methods thereof
US11865436B2 (en) 2014-04-21 2024-01-09 Steelseries Aps Variable actuators of an accessory and methods thereof
US11951385B2 (en) 2014-04-21 2024-04-09 Steelseries Aps Programmable actuation inputs of an accessory and methods thereof
US20170341329A1 (en) * 2016-05-27 2017-11-30 Fu Tai Hua Industry (Shenzhen) Co., Ltd. Pressing assembly
US10661520B2 (en) * 2016-05-27 2020-05-26 Fu Tai Hua Industry (Shenzhen) Co., Ltd. Pressing assembly

Also Published As

Publication number Publication date
DE69400063T2 (de) 1996-09-19
EP0622817A1 (en) 1994-11-02
JPH076656A (ja) 1995-01-10
EP0622817B1 (en) 1996-01-31
DE69400063D1 (de) 1996-03-14
KR100284664B1 (ko) 2001-03-15

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